# What is the difference between Resistance and Resistivity?

What is the difference between Resistance and Resistivity? As a physics student, you probably must have come across these two terms. Are they one and the same thing? Read on to find out if there exists any difference between them.

## Resistance and Resistivity

Resistance and resistivity are related to each other but they are not the same thing.

Resistance is the measure of the opposition to the flow of current through a conductor. It is measured in ohms (Ω) and depends on the material, its length, cross-sectional area, and temperature. The resistance of a material is proportional to its length and inversely proportional to its cross-sectional area. The longer the material, the greater the resistance, and the larger the cross-sectional area, the lower the resistance.

On the other hand, Resistivity is a measure of the material’s intrinsic property to resist the flow of current through it. It is the resistance of a material of unit length and unit cross-sectional area. Resistivity is measured in ohm-meters (Ω·m) and depends only on the material and temperature. Resistivity is a fundamental property of a material, and it is used to calculate the resistance of a conductor of a particular size and shape.

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In summary, resistance is a property of a conductor, while resistivity is a property of a material. Resistance depends on the dimensions of the conductor, while resistivity depends on the material properties.